The FBI arrests a serial killer John Mostow, responsible for the killing of at least 7 men. Mostow claims he was possessed by an evil spirit, a fairly common claim among serial killers as Scully points out. With Mostow in custody however, other very similar attacks occur leading Mulder to think Mostow may be telling the truth. The agent in charge of the case, the renowned Bill Patterson, doesn't think much of Mulder or the kind of cases he deals in. As the killings continue however, the evidence not only points to Mulder's theory being correct but points to the killer.
Did You Know?
, in only his third American role, shaved his head and lost 10 pounds to play his demented character. See more
When Mostow's cell shutter is opened, the light from the corridor is extremely bright, yet when Mulder and Scully enter the cell the light is less harsh. At the bottom right of the door as it is opened a crew member's leg can briefly be seen, presumably taking the first, brighter light out of the frame. See more
Agent Bill Patterson
My advice to you, Scully: Let Mulder do what he has to do. Don't get in his way. And don't try to hold him back because you won't be able to.
Written by Mark Snow
Performed by John Beal See more